With those inductance values, it looks like it's probably a communications/speech transformer. Maybe for HAM radio or intercom applications. Have you swept it?
By the way. I have a few other ADCs here at my desk right now.A5509AA5430D6403 (also says LE1-M4391)
Awesome, will be interested to see the A5509A. By the way, if you want my 5508/5509 set just PM me an offer of cash or trade. I don't think I am going to have time to build a preamp with them anytime soon!
These belong to a friend/client who wanted me to test them out. He has more salvaged parts from vintage consoles than anyone I know personally.
Yeah he’s as OCD about it as I was years ago.
Of course, no one on GroupDIY has OCD, right?
Haha! You know him.Of course, no one on GroupDIY is has OCD, right?
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